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http://dx.doi.org/10.3795/KSME-A.2007.31.10.1009

Elastic-plastic Analysis of a 3-Dimensional Inner Crack Using Finite Element Alternating Method  

Park, Jai-Hak (충북대학교 안전공학과)
Park, Sang-Yun (한국원자력연구소)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.31, no.10, 2007 , pp. 1009-1016 More about this Journal
Abstract
Finite element alternating method has been suggested and used effectively to obtain the fracture parameters in assessing the integrity of cracked structures. The method obtains the solution from alternating independently between the FEM solution for an uncracked body and the crack solution in an infinite body. In the paper, the finite element alternating method is extended in order to obtain the elastic-plastic stress fields of a three dimensional inner crack. The three dimensional crack solutions for an infinite body were obtained using symmetric Galerkin boundary element method. As an example of a three dimensional inner crack, a penny-shaped crack in a finite body was analyzed and the obtained elastc-plastic stress fields were compared with the solution obtained from the finite element analysis with fine mesh. It is noted that in the region ahead of the crack front the stress values from FEAM are close to the values from FEM. But large discrepancy between two values is observed near the crack surfaces.
Keywords
Finite Element Alternating Method; 3-Dimensional Crack; Elastic -plastic Analysis; Symmetric Galerkin Boundary Element Method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 2
연도 인용수 순위
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